Academic Journal
Study on Optical Properties and Internal Quantum Efficiency Measurement of GaN-based Green LEDs
| Title: | Study on Optical Properties and Internal Quantum Efficiency Measurement of GaN-based Green LEDs |
|---|---|
| Authors: | Boyang Lu, Lai Wang, Zhibiao Hao, Yi Luo, Changzheng Sun, Yanjun Han, Bing Xiong, Jian Wang, Hongtao Li, Kaixuan Chen, Xiangjing Zhuo, Jinchai Li, Junyong Kang |
| Source: | Applied Sciences, Vol 9, Iss 3, p 383 (2019) |
| Publisher Information: | MDPI AG, 2019. |
| Publication Year: | 2019 |
| Collection: | LCC:Technology LCC:Engineering (General). Civil engineering (General) LCC:Biology (General) LCC:Physics LCC:Chemistry |
| Subject Terms: | temperature dependent photoluminescence, power dependent photoluminescence, internal quantum efficiency, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999 |
| More Details: | In this paper, the optical properties of GaN-based green light emitting diode (LED) are investigated and the internal quantum efficiency (IQE) values are measured by temperature dependent photoluminescence (TDPL) and power dependent photoluminescence (PDPL) methods. The "S-shaped„ shift of peak wavelength measured at different temperature disappears gradually and the spectra broadening can be observed with increasing excitation power. The IQE calculation results of TDPL, which use the integrated intensity measured at low temperature as unity, can be modified by PDPL in order to acquire more accurate IQE values. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2076-3417 05412080 |
| Relation: | https://www.mdpi.com/2076-3417/9/3/383; https://doaj.org/toc/2076-3417 |
| DOI: | 10.3390/app9030383 |
| Access URL: | https://doaj.org/article/de27d7aafe054120800c7b7c6a49167d |
| Accession Number: | edsdoj.27d7aafe054120800c7b7c6a49167d |
| Database: | Directory of Open Access Journals |
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| ISSN: | 20763417 05412080 |
|---|---|
| DOI: | 10.3390/app9030383 |
| Published in: | Applied Sciences |
| Language: | English |